Tool



H. H. WHITEHEAD.

TOOL.

APPLICATION FILED MG. 12. I920.

Patented Feb. 1. 1921.

UNITED STATES PATENT OFFICE.

rmeirn. wnrrnnnan, OFPALMETI'O, FLORIDA, ASSIGNOROF oNn DANIEL M.COURTNEY, orrnrmn'rwo, FLORIDA.

TOOL.

Specification of Letters Patent.

Patented Feb; 1, 1 921.

Application filed August 12, 1920. StrialNo/MQBS'I;

i particularly to a tool especially designed for repairing internalcombustion engines.

The primary object of the invention 1s to provide a device ofthischaracter whlch may be applied to a valve, while the same spositioned in its cylinder, for imparting rotary movement to the valveto accomplish the grinding thereof.

A further object of the invention is to provide a tool of this characterwhich may be adjusted for use with valves of-var1ous designs and onewhich may be readily and easily operated.

A still further object of the invention 13 the provision of a novel formof operating levers, whereby the force of the levers of the operatingrod is evenly distributed throughout the body thereof, to eliminatebinding of the working parts of the tool.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, wlthout de arting from the spirit of theinvention.

eferring to the drawings Figure 1 is a side elevational v1ew of thetool.

Fig. 2 is a bottom plan view of the head of the bit.

Fig. 3 is a sectional view taken on line 3-3 of Fig. 2. I

Fig. 4 is a longitudinal sectional View through one of the housings, and

Fig. 5 is a sectional view taken on line 5-5 of Fig. 4.

Referring to the drawing in detail. the reference character 5 designatesthe body portion of the tool, which is in the form of a relatively longrod having the opposed spiral grooves 6 and 7 formed therein, the upperextremity of the body portion 5 be ing supplied with the head 8 whichhas a swivel connection with the body 5 to permit movement of the body 5with relationto the" head8.

On the opposite extremity ofthe body5, is a socketmember 9which is ofany conven= tional form, and supports the bit 10, to be:

hereinafter "more any described.

ilperatlng on thebody 5, are the tubular housings 11 and 12, each ofwhich isprovided with opposed pintles- 13 eaten dinglatorally fromopposite sides thereoiipthe pintles being disposed in suitable openingsprovided. in the operating levers, whereby the levers may plvot withrelation to the housings l1 and 12 during the operation thereof, and asshown, the upper housing 12- has pivotal connectionwith thelever 14botweenthe walls of theyoke lidforming a part of the lever 14;

The-outer extremity ofthe lever M is curved as at 17 and haspivotalconnection with the link 18, as at 19, the lower eX- trernity ofsaid link 18 extending inwardly as at 20 so that movement of theoperating handle 21, which is carried on one end of the lever let, will.produce a relative movement of the housings 11 and 1.2, in oppositedirections. i

In each of the housings 11 and 12 are the opposed springs indicated at22, eachof which springs is curved and engages an arm indicated at 26,there being two of such arms in each housing, the arms being howeverpivotally supported therein, the upper ends thereof engaging the balls24 which are supported by the camming ring 23 to move the upper ends ofthe arms 26 to cause the lower ends of the arms to move intopredetermined notches 26, formed exteriorly of the sleeve 27. A spirallyarranged web indicated at 28 is formed integral within each of thesleeves 27', which web is designed to move in the spiral grooves 6 and7. From the foregoing it is obvious that when the ring 23 is moved tobring one of the arms 26 into engagement with the notches 26, thehousing i moved continuously in one direction, and when the 28, whichopening provides a clearance for one end of the shank 29, which isprovided with an opening adapted to accommodate the transverselyextending pin 30, whereby the head and shank are secured together, andsince the central opening 28 is of a diameter larger than the diameterof the shank 29, it will be seen that free pivotal movement between thehead and shank is permitted.

Pins 30 and 31 are carried by the head 27, andeach of these pins ismounted eccentrically of the relatively small heads 32, which heads 32are disposed in openings formed in the first mentioned head, there beingprovided threaded members 33 operating in suitable openings formed inthe head 27, the members 33 adapted to contact with the relatively smallheads 52, to secure the same against rotation within their openings.From the foregoing it is obvious that these heads 32 may be adjusted,whereby the pins carried thereon may be regulated to cause the same toregister with the openings usually provided in valve heads.

It will thus be seen that in the operation of the device, movement ofthe operating handle 21 causes the housings 11 and 12 to movelongitudinally of the body 5, in opposite directions, causing therotation of the bit in opposite directions at predetermined intervals,to the end that the valve, which has connection with the head 27,through the pins 30 and 31, is oscillated in its seat to accomplish thegrinding of the valve and insuring a true seating thereof.

Having thus described the invention, what is claimed as new is In atool, body portion having opposed spiral grooves formed therein,housings operating on the body portion and having a sleeve movablewithin each housing, each sleeve having notches formed therein, armssupported within the housings, spring members contacting with the armsand adapted to normally force the arms into the notches, means formoving the arms into and out of operation, and means for moving thehousings longitudinally of the body portion to rotate the body portionin opposite directions.

in testimony that I claim the foregoing as my own, 1 have hereto aflixedmy signature in the presence of two witnesses.

HUGH H. WHITEHFAD. Witnesses W. E. MANN, G. P. SMYTHE.

